Subtract 7/4 from 48/21
1st number: 2 6/21, 2nd number: 1 3/4
48/21 - 7/4 is 15/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
48/21 = 48 × 4/21 × 4 = 192/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
7/4 = 7 × 21/4 × 21 = 147/84 - Subtract the two like fractions:
192/84 - 147/84 = 192 - 147/84 = 45/84 - After reducing the fraction, the answer is 15/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/21-7/4 48/21-14/4 48/42-7/4 48/21-7/8 48/21-21/4 48/63-7/4 48/21-7/12 48/21-35/4 48/21-7/20 48/21-49/4 48/21-7/28